نوع مقاله : مقاله پژوهشی
1 کارشناس پژوهشهای کاربردی، مرکز تحقیقات حفاظت خاک و آب در اراضی دیم دانشگاه تهران (مرکزکوهین)
2 استاد، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج
3 استادیار، دانشکده کشاورزی، دانشگاه زنجان
4 استادیار، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج
عنوان مقاله [English]
In this study relationships between morphological characteristics of 64 chickpea genotypes under non- stress and stress conditions was evaluated in 8*8 simple lattice designs on the Research Field of Koohin,Tehran University). The Karaj3628 and Karaj3655 genotypes respectively with 1387.947 and 1352.074 Kg/hac under Non-stress and Karaj3628 and Karaj3645 genotypes with 698 and 694.5 Kg/hac respectively under stress conditions had the highest seed yields. There were significant positive correlation between SY* with PW, BY, NP, LD, NS, RD, PH, NSB, DBW, EPN, HI, NPB and DSW in non- stress condition and there were significant positive correlation between SY with PW, PN, NS, LD, HI, RD, PH and MP in stress condition. Stepwise regression results showed that 8 independent variables entered into models in non-stress condition and 3 independent variables entered into models in stress condition, so that PW was first in both of them. Path coefficient analysis revealed that BY and NP had the highest positive direct effect on seed yield under non-stress condition. Factor analysis explained 85.66 % in non stress and 86.25 % total of variation in stress conditions with four factors. In cluster analysis 64 genotypes clustered in five groups.
List of abbreviations:
* SY: seed yield; PH: plant high; BY: biological yield; RD: root diameter’s; PN: number of pods per plant; PW: pod weight; NS: number of seeds per plant; SW: seed weight; NPB: Number of primary branches; NSB: Number of secondary branches; DSPP: double seed per plant; DSW: double seed weight; LD: length density; DBW: dry branches weight; HI: harvest index and; EPN: empty pod number per plant; HSW: 100 seeds weight; IP: immaturity percent; MP: maturity percent.